Beuger



w A' KNO 1510681.;

V.. mi

E. 0. GERSTENBBRGBR.

COMPOSITION MATERIAL FOR SHIETDS.

"Patented Jem. 5,

/NVENTH UNTTTQD STATES ETHVARD C. GEHSTPIN]ERG-ER, Oli

PATENT @Feiern Vll'tOOllY, NEU' YORK.

SPECFICATION forming part of Letters Patent No. 574,728, dated January 5, 1897.

Application tiled October 1l, 1895. Renewed June l, 1896. Serial No. 593,920. No specimens.l

Be it known that. I, EDwAi-:D C. Gicnsrnx- BERGER, of Brooklyn, in Ithe count-y of Kings and State oi New York, have invented a new and Improved Material for Armor and other Purposes, of which the following is a full, clear, and exact description. f

The object oi" the invent-ion is to provide a new and in'iproved resisting material which is bullet-proof and waterproof, can be readily shaped,jcut, and bent into any desired form, and more especially designed for manufacturing armor, covers, and other articles.

The invention consists principally of alternate layers of fabrics, of which one layer conin which the figure is an enlarged sectional side elevation ot' the material.

The improved material consists principally of alternate layers of fabrics A, A', and B, ot'

which the alternate layers A A are made of haircloth with the succeeding layers clIQSS- top ol this su bstauee the prepared layer B, ar-4 wise to the previouslayer, as indicated in the drawing. 'l`he layer i3 consists of sheets l Aot gutttvpercha silesia, between which is placed a..minutely-divided substance vgli?, pref- 'icrablyva mixture of aliijlfa'nd ground gli' ranged asabove described. Then l place on the top of this layer a layer A of haircloth crosswise relative to the layer A, and then l subject the three layers to heat and pressure, so aste firmly unitethe t-hrec layers and press the same into a thin sheet. 0n the top ol' this sheet. is sprinkled another mixture of alum and ground glass, and then a layer B is placed on th is substance and :mother layer A oi` hairl cloth, after which heal'I and pressure is again applied and the operation is repeat-eiland then vas many alternate layers as necessary are .placed one upon the other until the desired thickness of the finished material is obtained, It is understood that any desired number ot' such alternate layers may be united with each other to form a material of the desired thickness, according to the intended use ot' the duA ished article. lt is understood that when heat is applied the layers A B A l, d'0., are firmly pressed in intimate contactwith each other to produce a bulletproof and waterproof material having a verygreat resista nce.

When the several layers a rc united as above described, the entire piece may be subjected to a very heavy pressure, so as to insure a complete uniting of the layers and substance and make the material ol any desired uniform thickness. Itis further understood that other materiale instead m alum sind o'i'minrl 'dass i maybe used. but l have found hv ex'xicricnee that the mixture of alum and ground gives excellent results.

It is understood that when the layers of the haireloth and guita-percha are subjected to the high pressure and heat th'ejitttafpeijlnn lillllluand glass areL inailQnSnilieicntly iiuiilio minimamente ein i e ril h the hair@ loth,

-the molten substance reatlilyp; sing into the meshes of the clothto form a compact: ma tliai reloth and gutta-perelm,alunnand gli The haircloth before use is preferably soaked in a solution ol alum and water to prevent the hairs from becoming singcd or burned when heat and pressure applied as above described.

A piece of material prepared in this manner is very light and of a great resistance, preventing the penetration olf bullets of at force and power. The material is not liable to split and is perfectly waterproof and a non-conductor oi' heat, electricity, and other matter. Articles too numerous to mention can be manufactured from the material.

Having thus fully described my invention, Ielaim as new and desire to secure by Letters Patent-- l. A material for armor and the like, consistingol. alternate layers ot fabrics, of which ou'e layer consists of haii-cloth and the other layer comprises sheets of silesia with a mi- @wirft y mi@ layer cousisls 01": liziii'clfqlii :mil the other nulQly-f'liviilfjfil substancebetween llmsliols., l lelyu-i' comprises slicQlS of silosiei .fm/ln niilllo Said snlislmmf; being n mixture nl alum 5 11iil0l).'- li\'i l(d substancebetweenthe sheets, und gi-ound glass, sullmilizilly :is Shown null ille lnvm's 0llyiiigl@lig-Q5 iligvgyngwiilpn tlm I0 described. i Qllll', sulistzmlizllly as shown nml doSCl-illl. 3. A material lfm' mimo :xml 1li@ like, c011- l sisLing'ol' :Llleiiizitelnyrsof Mln-hrs of which l-IMVRD l'. Ullll'll);lil-INNER. (me layer c0ns` ls of liggiijgllgtli nml the other ll'iiinCsses: layer Compris slmels of silb'izl willi Lgiil THEO. G. NOLSTE 15 iiitlllixideil subsluncebetweenlligslicels ilmiiun lillvfwu lli '^sl1(Ql.,\', lli@y Snill lfiym's lining firmly uliilml 'willi o" qjsubslnminlly :is shown and ilrisifrilml. mlm'by1li@:'iijipliwilimi @flu-:1li :nifl p'zessuiw.

2. A material fm' ammi' nml ille lilio, Cmil sulifzlmiliizilly :is slirm'n nml illfsm'ilwl. isling'wi' :illorimt hivers uf 1;il 1-iu; f wliivliu m10 layer consists of lmii'clolli mil tlzu millor layer cmnpl'is: shoots of silcsizi willi a mi- J.. )l material for :i1-m0: :xml tlmA like, coilsisliug of allemal@ layers 0l' fabrics, nl' 'which 

